Solved

Releasing file after sending it as attachment VB.net

Posted on 2009-05-15
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Last Modified: 2012-05-07
Hi

I have a problem, using the code bellow I send a file as attachment, but I have trouble as the program dose not release it after the file is sent.

Please help me to release the file so that other processes can use it

Michal
'Sending module

        sender = Form1.TextBox42.Text

        recipient = Form1.TextBox50.Text

        Subject = "Todays File " & Fdate & ".csv"

        attachmentString = ArchiveLocation & "\Archives\" & AnyDate.Year.ToString("0000") & "\" & AnyDate.Month.ToString("00") & "\" & Fdate & ".csv"
 

        Dim fromAddress As New Net.Mail.MailAddress(sender)

        Dim toAddress As New Net.Mail.MailAddress(recipient)

        Dim message As New Net.Mail.MailMessage(fromAddress, toAddress)
 

        Dim mailSender As Net.Mail.SmtpClient

        ' Change the Smtp server name on the next line

        mailSender = New Net.Mail.SmtpClient(Form1.TextBox41.Text, Form1.TextBox55.Text)
 

        ' message.Bcc.Add(fromAddress)

        message.Subject = Subject

        message.IsBodyHtml = True

        message.Body = "Todays CSV File "
 

        If Not attachmentString = "" Then

            Dim msgAttach As New Net.Mail.Attachment(attachmentString)

            message.Attachments.Add(msgAttach)

        End If
 

        Try
 

            mailSender.Send(message)
 

       

            MsgBox("File Sent")
 

        Catch ex As Exception

            MessageBox.Show(ex.Message, "Error Mail Not Sent")

        End Try

101:

    End Sub

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Comment
Question by:MichMat
  • 3
5 Comments
 
LVL 12

Expert Comment

by:rgn2121
ID: 24393730
Do you dispose of your message object?  I have never had that issue and I have an app that exports data to Excel, attches it and sends it out.
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LVL 12

Accepted Solution

by:
rgn2121 earned 500 total points
ID: 24393737
Something like this...
'Code to send email

        smtpServer.Send(msg)

        msg.Dispose()

        smtpServer = Nothing

        msg = Nothing

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0
 
LVL 12

Expert Comment

by:rgn2121
ID: 24393745
I know that it doesn't retain access, because I delete the file after it has been sent...
0
 
LVL 5

Expert Comment

by:burningmace
ID: 24393748
Load the attachment as an IO stream:
Dim fileName As String = "C:\file.txt"

Dim attFile As New FileStream(fileName, FileMode.Open, FileAccess.Read)

Dim att As New Net.Mail.Attachment(attFile, "attachment-file-name.txt")

' ... send code goes here ...

Try

    attFile.Close()

Catch ex As Exception

End Try

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Author Closing Comment

by:MichMat
ID: 31581851
Thank you that fixed the issue
0

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